Food Web Dynamics and Interactions

The primary source of energy for this food web is _____

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

Match the organisms with the category

• Omnivores

• Bear, Bobcat, Hawk

• Herbivores

• Owl

• Apex Predator

• Deer, Beetle, Squirrel

• Producers

• Grass, Acorns, Berries

• Secondary Consumers

• Red Fox, Owl, Snake

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NGSS.MS-LS2-3

NGSS.MS-LS2-1

NGSS.MS-LS2-2

What kind of consumer is a bear?

• Omnivore

• Producer

• Carnivore

• Primary Consumer

If the deer population decreased, which animal would be most affected?

• Bobcat

• Hawk

• Rabbit

• Bear

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NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Energy flows from the sun to the flowers through a process called:

• photosynthesis
• energy cycle

• nutrient cycle

• producer cycle

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NGSS.MS-LS1-6

Is this a simple food chain or a more complex food web? Why?

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NGSS.MS-LS2-3

NGSS.MS-LS2-2

What would happen to the squirrel population if the acorns all died?

• The squirrel population would increase.

• The squirrel population would decrease.

• The squirrel population would remain the same.

• The squirrel population would migrate to another area.

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

What does a food web represent?

• How energy flows throughout all organisms in an ecosystem.

• All the plants and animals who live in the same place.

• How producers get their food.

• How carnivores get their food. 

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NGSS.MS-LS2-3

Why is it important to have predators in a food web?

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NGSS.MS-LS2-3

NGSS.MS-LS2-2

NGSS.MS-LS2-4

In the energy pyramid here, how much of the energy in each level gets lost as heat or used by the organism for survival?

• 80%
• 90%
• 10%
• 20%

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NGSS.MS-LS2-3